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3 votes
1 answer
341 views

Why are my read speeds so bad using sqlite?

I know very little about databases and even less about how to optimize them, but I have a problem which calls for a database so here I am... I created a sqlite3 database using the following script: <...
  • 906
1 vote
0 answers
45 views

UPDATE on Newspaper Bill Calculator CLI with Python (3 of 3, Database)

Code is posted after explanation. Due to the size of the project, this is being posted in three separate posts. This also ensures each post is more focused. Post 1 of 3, Core: UPDATE 1 on Newspaper ...
3 votes
1 answer
75 views

Newspaper Bill Calculator CLI with Python (3 of 3, Database)

Code is posted after explanation. Due to the size of the project, this is being posted in three separate posts. This also ensures each post is more focused. Post 1 of 3, Core: Newspaper Bill ...
3 votes
1 answer
79 views

Acupuncture database builder

The following code builds a rudimentary acupuncture database by collecting data from the web. I would like to hear suggestions about improvements to the database structure, code organization, web-...
  • 417
2 votes
0 answers
232 views

SQLite C/ADO VBA library with reflection

SQLite C/ADO VBA library with reflection The SQLiteCAdo library is a VBA middleware facilitating access to SQLite databases. Its two subpackages provide alternative connectivity options: via ADODB/...
  • 415
3 votes
1 answer
298 views

VBA introspection library for SQLite

SQLiteDB VBA Library is a set of VBA helper functions for the SQLite engine. The primary motivation behind this project is to provide convenient access to extended introspection features. Because of ...
  • 415
1 vote
1 answer
2k views

SQLite and Python: commit once every 10 seconds maximum, and not after every client request

In a Python Bottle server using SQLite, I noticed that doing a DB commit after each INSERT is not efficient: it can use 100ms after each client request. Thus I wanted to improve this in How to commit ...
  • 244
4 votes
1 answer
998 views

Interface class for SQLite databases

I am learning the basics about managing an SQLite database by using Python and, mainly for practice purposes, I have then defined an interface class in order to let operations on database as clear as ...
3 votes
2 answers
196 views

Database Design for representing category relationships

So I am new to Databases.Recently I was asked this question in an interview where they expected me to come with a schema for storing and retrieving categories for an E-commerce website in an RDBMS. ...
1 vote
1 answer
65 views

Scenario creator database design

I am working on moving a save system from loose files to a (spatial sqlite) database. The user places objects from a library in a 3d simulation. Scenarios are "what-ifs", what if we place 5 wind ...
  • 11
1 vote
0 answers
199 views

c++ sqlite3 wrapper

this is a simple wrapper for sqlite3 to make working with databases easier it isn't a professional implementation but it is much better than the raw c interface I saved much time and code using this ...
  • 293
1 vote
2 answers
2k views

Extensive use of exception for database wrapper

My favourite programming language is Java and I usually use JDBC for database operations. I'm using Swift for one of my projects and I should use a database. The problem is SQLite is only available ...
2 votes
0 answers
1k views

Inserting large datasets into SQLite db becomes very slow over time

I'm using the program below to insert values from very large .csv files (~2.5 million lines) into an SQLite DB. It starts very fast, but begins to slow over time, before eventually hanging ...
  • 191
2 votes
1 answer
2k views

List<List<string>> vs DataTable

I have an application which uses SQLite. In that database I have several tables that I need to be able to read and update in my application. Often I need to 'cross-reference' these tables to get the ...
6 votes
1 answer
245 views

Car leasing system - add lease to database

I just came back to programming and decided to create a car leasing system (GitHub page here.) to teach myself about databases, gui programming and web development. And I would like some input on what ...
  • 113
3 votes
1 answer
290 views

SQLite database for a micro/tumble blog application

I'm creating a personal website where, among other things, there is a blog, or a "microblog" (I'm still not sure how to define the two), where I will be writing articles and having users, who will ...
5 votes
2 answers
12k views

Check existence of a row then update a column

not too experienced with SQL, wondering if I can make this better... I am trying to check if a row exists and then add one to the frequency column if it does, if it does not exist it should return ...
  • 263
6 votes
2 answers
10k views

Saving and Loading data with SQLite

I'm in the process of learning SQLite in C# and I've come up with some generic methods for finding and updating data. I would appreciate any pointers with the design of my methods and/or my SQL syntax....
  • 197
8 votes
1 answer
1k views

Generic asynchronous SQLite search builder

I am writing a database manager that reads and writes to a local SQLite database on a mobile device. It works pretty well for the most part, but read access is somewhat slow - it takes about 2-5 ...
  • 133
2 votes
1 answer
1k views

Key Value Store for Android on top of Sqlite3

I wrote this simple key-value interface on top of Sqlite3 to use in my Android app. I am using this to persist Java objects as strings converted using Gson. The public API has 3 methods. get(...
  • 167
7 votes
3 answers
8k views

Create SQLite backups

I have this script for creating SQLite backups, and I was wondering whether you'd have any suggestions on how to improve this. I was thinking that maybe it should create the backup ...
6 votes
1 answer
3k views

Persistent key value store for Python using SQLite3

This is a module to implement a key value store in Python using SQLite3. Originally written to allow sharing of configuration among multiple threads that are already sharing a SQLite3 database, I have ...
6 votes
2 answers
182 views

Database data insertion

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3 votes
2 answers
178 views

Querying a database with PHP

I'm new to PHP programming. I would love some feedback on this simple code I wrote which queries a database based on some arguments supplied by a user and returns an HTML table displaying the data. ...
  • 133
7 votes
4 answers
454 views

Storing .h files in SQLite using SQLJet

I’m trying to learn as much as I can on my own by reading lots of examples, documentations, and asking here. I would like to improve my style to write efficient code and adhere to Java standards. In ...